Transpiration Experiment Worksheet

Science experiments lesson 15: How a plant drinks and gives out water · Set 171 · 40 questions

What you do (Roots in, leaves out): 1. Water the potted plant well. 2. Slip a clear plastic bag over a leafy branch. 3. Close it gently with a rubber band — not too tight. 4. Leave it in the sun for a few hours, then look for drops.

1. 1.🔍 What do you see inside the plastic bag after a few hours in the sun? (a) tiny insects (b) salt crystals (c) tiny water drops (d) nothing at all
2. 2.🧺 Which of these is not needed for the leafy bag test? (a) a mirror (b) a clear plastic bag (c) a potted plant (d) sunlight
3. 3.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “sun or shade”? (a) we keep it the same (b) we change it (c) we measure it
4. 4.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is the one thing we change? (a) the size of the plant (b) sun or shade (c) the time we wait (d) amount of water drops
5. 5.True or false: give out water vapour is a job of the leaves. (a) False (b) True
6. 6.🔮 Predict: you tie a bag on a branch with no leaves. Will it collect much water? (a) much less water (b) it fills with soil (c) much more water (d) exactly the same
7. 7.True or false: yeast is needed for the leafy bag test. (a) True (b) False
8. 8.🔮 Predict: a plant gets no water for many days in summer. What happens? (a) it flowers more (b) it grows faster (c) it wilts and droops (d) it turns blue
9. 9.🪴 Which of these is a job of the roots? (a) hold the plant in soil (b) give out water vapour (c) make food in sunlight (d) carry water upward
10. 10.🧺 Do we need a magnet for the leafy bag test? (a) needed (b) not needed
11. 11.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is what we measure? (a) the size of the plant (b) the time we wait (c) the same kind of bag (d) amount of water drops
12. 12.True or false: a clear plastic bag is not needed for the leafy bag test. (a) False (b) True
13. 13.🪴 Which part of a plant does this job: make seeds? (a) leaves (b) roots (c) stem (d) flower
14. 14.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a potted plant (c) sunlight (d) a mirror
15. 15.True or false: hold the plant in soil is a job of the roots. (a) False (b) True
16. 16.True or false: turmeric powder is needed for the leafy bag test. (a) True (b) False
17. 17.🪴 Which of these is a job of the stem? (a) take in water from soil (b) hold the plant in soil (c) carry water upward (d) make seeds
18. 18.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) a few hours (c) a mirror (d) a magnet
19. 19.🛟 How should the plastic bag be tied around the branch? (a) with sharp wire (b) gently, not too tight (c) as tight as possible (d) with a hot glue gun
20. 20.🪴 Where did the water inside the bag come from? (a) the rubber band (b) the rain (c) the leaves (d) the plastic
21. 21.🛟 Why must a plastic bag never go over anyone’s head? (a) it can block breathing (b) it changes colour (c) it is too big (d) it gets wet
22. 22.🪴 Through which part does a plant take in water from the soil? (a) the flowers (b) the leaves (c) the roots (d) the fruits
23. 23.🧺 Which of these is needed for the leafy bag test? (a) vinegar (b) a magnet (c) a rubber band (d) a mirror
24. 24.True or false: sunlight is not needed for the leafy bag test. (a) True (b) False
25. 25.🪴 Which part of a plant does this job: make food in sunlight? (a) stem (b) roots (c) flower (d) leaves
26. 26.📘 What do we call plants giving out water vapour from their leaves? (a) reflection (b) germination (c) transpiration (d) digestion
27. 27.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a clear plastic bag (b) a few hours (c) yeast (d) sunlight
28. 28.True or false: sunlight is needed for the leafy bag test. (a) False (b) True
29. 29.🧺 Three of these are needed for the leafy bag test. Which one is NOT needed? (a) a magnet (b) a rubber band (c) a potted plant (d) sunlight
30. 30.True or false: turmeric powder is not needed for the leafy bag test. (a) False (b) True
31. 31.🧺 Which of these is not needed for the leafy bag test? (a) a few hours (b) sunlight (c) a battery cell (d) a rubber band
32. 32.True or false: a potted plant is not needed for the leafy bag test. (a) True (b) False
33. 33.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? Which of these is kept the same? (a) amount of water drops (b) sun or shade (c) the same kind of bag
34. 34.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? What do we do with “the size of the plant”? (a) we keep it the same (b) we change it (c) we measure it
35. 35.True or false: carry water upward is a job of the leaves. (a) False (b) True
36. 36.🪴 Which of these is a job of the stem? (a) take in water from soil (b) make food in sunlight (c) hold up the leaves (d) give out water vapour
37. 37.🧺 Do we need a rubber band for the leafy bag test? (a) not needed (b) needed
38. 38.🧺 Do we need sunlight for the leafy bag test? (a) not needed (b) needed
39. 39.True or false: a magnet is needed for the leafy bag test. (a) True (b) False
40. 40.⚖️ Fair test — does a plant in the sun give out more water than one in the shade? True or false: the time we wait is kept the same. (a) False (b) True

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